Princess Alyssa

I'm not pleased with how this turned out at all. Any advice? I used rounds - 8, 8, 6, 5, and round top from a Pyrex bowl and then iced with buttercream and then fondant. I didn't give the buttercream a long time to harden due to time constraints. My shape was perfect pre-fondant though. Then, about 15 minutes after fondant, the wrinkles started.